PIC18F45K22 Microcontroller

• • • C Compiler optimized architecture/instruction set
    • Data EEPROM to 1024 bytes
    • Linear program memory addressing to 64 Kbytes
    • Linear data memory addressing to 4 Kbytes
    • Up to 16 MIPS operation
    • 16-bit wide instructions, 8-bit wide data path
    • Priority levels for interrupts
    • 31-level, software accessible hardware stack
    • 8 x 8 Single-Cycle Hardware Multiplier

Extreme Low-Power Management with nanoWatt XLP™:

• • • Sleep mode: 100 nA, typical
    • Watchdog Timer: 500 nA, typical
    • Timer1 Oscillator: 500 nA @ typical 32 kHz Flexible Oscillator Structure
    • Precision 16 MHz internal oscillator block:
      • Factory calibrated to ± 1%
      • Software selectable frequencies range of 31 kHz to 16 MHz
      • 64 MHz performance available using PLL
      • no external components required
    • Four Crystal modes up to 64 MHz
    • Two external Clock modes up to 64 MHz
    • 4X Phase Lock Loop (PLL)
    • Secondary oscillator using Timer1 @ 32 kHz
    • Fail-Safe Clock Monitor:
      • Allows for safe shutdown if peripheral clock stops
    • Two-Speed Oscillator Start-up

Special Microcontroller Features:

• • • Full 5.5V operation (PIC18F2XK22/4XK22)
    • Low voltage option available for 1.8V-3.6V operation (PIC18LF2XK22/4XK22)
    • Self-reprogrammable under software control
    • Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
    • Programmable Brown-out Reset (BOR)
    • Extended Watchdog Timer (WDT) with on-chip oscillator and software enable
    • Programmable code protection
    • In-Circuit Serial Programming™ (ICSP™) via two pins
    • In-Circuit Debug via two pins

Analog Features:

• • • Analog-to-Digital Converter (ADC) module:
      • 10-bit resolution
      • 17 analog input channels (PIC18F/LF2XK22)
      • 28 analog input channels (PIC18F/LF4XK22)
      • Auto acquisition capability
      • Conversion available during Sleep
    • Programmable High/Low Voltage Detection (PLVD) module
    • Charge Time Measurement Unit (CTMU) for mTouch™ support:
      • Up to 28 channels for button, sensor or slider input
    • Analog comparator module with:
      • Two rail-to-rail analog comparators
      • Comparator inputs and outputs externally accessible and configurable
    • Voltage reference module with:
      • Programmable On-chip Voltage Reference (CVREF) module (% of VDD)
      • Selectable on-chip fixed voltage reference

Peripheral Features:

• • 24/35 I/O pins and 1 input-only pin:
    • High current sink/source 25 mA/25 mA
    • Individually programmable weak pull-ups
    • Individually programmable interrupt-on-pin change
  • Three external interrupt pins
  • Up to seven Timer modules:
    • Up to four 16-bit timers/counters with prescaler
    • Up to three 8-bit timers/counters
    • Dedicated, low-power Timer1 oscillator
  • Up to two Capture/Compare/PWM (CCP) modules
  • Up to three Enhanced Capture/Compare/PWM (ECCP) modules with:
    • One, two or four PWM outputs
    • Selectable polarity
    • Programmable dead time
    • Auto-shutdown and Auto-restart
    • PWM output steering control
  • Two Master Synchronous Serial Port (MSSP) modules with two modes of operation:
    • 3-wire SPI (supports all 4 SPI modes)
    • I2C™ Master and Slave modes (Slave mode with address masking)
  • Two Enhanced Universal Synchronous Asynchronous Receiver Transmitter modules (EUSART):
    • Supports RS-232, RS-485 and LIN 2.0
    • Auto-Baud Detect
    • Auto Wake-up on Start bit